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#1
07-11-2005, 04:29 PM
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W124 500E A/C efficiency ?
Summer heat and humidity is among us in Florida.
As such, my wife has noticed that the 500E's A/C doesn't get very cool, esp. compared to the wagon's converted R134a system (new compressor, condenser, dryer, and expansion valve 3-years ago). A couple of days ago it was about 97-F, and 83% humidity, for a heat index of about 103-F. After driving 45-minutes on the freeway, the coolest the center vent could get was about 57-F. FWIW, my mechanic said there was no bubbles in the A/C's sight-glass, and 6-months ago he replaced the expansion valve, drew a vacuum overnight, and recharged it fully. Is this normal for a 500E in this weather condition ? I know the M119 engine produces a lot more heat than my M104 AMG . . . :-( neil 1993 500E 
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